| /* |
| * Copyright (c) 2012-2016 Qualcomm Atheros, Inc. |
| * Copyright (c) 2018-2019, The Linux Foundation. All rights reserved. |
| * |
| * Permission to use, copy, modify, and/or distribute this software for any |
| * purpose with or without fee is hereby granted, provided that the above |
| * copyright notice and this permission notice appear in all copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| */ |
| |
| #ifndef WIL6210_TXRX_H |
| #define WIL6210_TXRX_H |
| |
| #include "wil6210.h" |
| #include "txrx_edma.h" |
| |
| #define BUF_SW_OWNED (1) |
| #define BUF_HW_OWNED (0) |
| |
| /* default size of MAC Tx/Rx buffers */ |
| #define TXRX_BUF_LEN_DEFAULT (2048) |
| |
| /* how many bytes to reserve for rtap header? */ |
| #define WIL6210_RTAP_SIZE (128) |
| |
| /* Tx/Rx path */ |
| |
| static inline dma_addr_t wil_desc_addr(struct wil_ring_dma_addr *addr) |
| { |
| return le32_to_cpu(addr->addr_low) | |
| ((u64)le16_to_cpu(addr->addr_high) << 32); |
| } |
| |
| static inline void wil_desc_addr_set(struct wil_ring_dma_addr *addr, |
| dma_addr_t pa) |
| { |
| addr->addr_low = cpu_to_le32(lower_32_bits(pa)); |
| addr->addr_high = cpu_to_le16((u16)upper_32_bits(pa)); |
| } |
| |
| /* Tx descriptor - MAC part |
| * [dword 0] |
| * bit 0.. 9 : lifetime_expiry_value:10 |
| * bit 10 : interrupt_en:1 |
| * bit 11 : status_en:1 |
| * bit 12..13 : txss_override:2 |
| * bit 14 : timestamp_insertion:1 |
| * bit 15 : duration_preserve:1 |
| * bit 16..21 : reserved0:6 |
| * bit 22..26 : mcs_index:5 |
| * bit 27 : mcs_en:1 |
| * bit 28..30 : reserved1:3 |
| * bit 31 : sn_preserved:1 |
| * [dword 1] |
| * bit 0.. 3 : pkt_mode:4 |
| * bit 4 : pkt_mode_en:1 |
| * bit 5 : mac_id_en:1 |
| * bit 6..7 : mac_id:2 |
| * bit 8..14 : reserved0:7 |
| * bit 15 : ack_policy_en:1 |
| * bit 16..19 : dst_index:4 |
| * bit 20 : dst_index_en:1 |
| * bit 21..22 : ack_policy:2 |
| * bit 23 : lifetime_en:1 |
| * bit 24..30 : max_retry:7 |
| * bit 31 : max_retry_en:1 |
| * [dword 2] |
| * bit 0.. 7 : num_of_descriptors:8 |
| * bit 8..17 : reserved:10 |
| * bit 18..19 : l2_translation_type:2 00 - bypass, 01 - 802.3, 10 - 802.11 |
| * bit 20 : snap_hdr_insertion_en:1 |
| * bit 21 : vlan_removal_en:1 |
| * bit 22..31 : reserved0:10 |
| * [dword 3] |
| * bit 0.. 31: ucode_cmd:32 |
| */ |
| struct vring_tx_mac { |
| u32 d[3]; |
| u32 ucode_cmd; |
| } __packed; |
| |
| /* TX MAC Dword 0 */ |
| #define MAC_CFG_DESC_TX_0_LIFETIME_EXPIRY_VALUE_POS 0 |
| #define MAC_CFG_DESC_TX_0_LIFETIME_EXPIRY_VALUE_LEN 10 |
| #define MAC_CFG_DESC_TX_0_LIFETIME_EXPIRY_VALUE_MSK 0x3FF |
| |
| #define MAC_CFG_DESC_TX_0_INTERRUP_EN_POS 10 |
| #define MAC_CFG_DESC_TX_0_INTERRUP_EN_LEN 1 |
| #define MAC_CFG_DESC_TX_0_INTERRUP_EN_MSK 0x400 |
| |
| #define MAC_CFG_DESC_TX_0_STATUS_EN_POS 11 |
| #define MAC_CFG_DESC_TX_0_STATUS_EN_LEN 1 |
| #define MAC_CFG_DESC_TX_0_STATUS_EN_MSK 0x800 |
| |
| #define MAC_CFG_DESC_TX_0_TXSS_OVERRIDE_POS 12 |
| #define MAC_CFG_DESC_TX_0_TXSS_OVERRIDE_LEN 2 |
| #define MAC_CFG_DESC_TX_0_TXSS_OVERRIDE_MSK 0x3000 |
| |
| #define MAC_CFG_DESC_TX_0_TIMESTAMP_INSERTION_POS 14 |
| #define MAC_CFG_DESC_TX_0_TIMESTAMP_INSERTION_LEN 1 |
| #define MAC_CFG_DESC_TX_0_TIMESTAMP_INSERTION_MSK 0x4000 |
| |
| #define MAC_CFG_DESC_TX_0_DURATION_PRESERVE_POS 15 |
| #define MAC_CFG_DESC_TX_0_DURATION_PRESERVE_LEN 1 |
| #define MAC_CFG_DESC_TX_0_DURATION_PRESERVE_MSK 0x8000 |
| |
| #define MAC_CFG_DESC_TX_0_MCS_INDEX_POS 22 |
| #define MAC_CFG_DESC_TX_0_MCS_INDEX_LEN 5 |
| #define MAC_CFG_DESC_TX_0_MCS_INDEX_MSK 0x7C00000 |
| |
| #define MAC_CFG_DESC_TX_0_MCS_EN_POS 27 |
| #define MAC_CFG_DESC_TX_0_MCS_EN_LEN 1 |
| #define MAC_CFG_DESC_TX_0_MCS_EN_MSK 0x8000000 |
| |
| #define MAC_CFG_DESC_TX_0_SN_PRESERVED_POS 31 |
| #define MAC_CFG_DESC_TX_0_SN_PRESERVED_LEN 1 |
| #define MAC_CFG_DESC_TX_0_SN_PRESERVED_MSK 0x80000000 |
| |
| /* TX MAC Dword 1 */ |
| #define MAC_CFG_DESC_TX_1_PKT_MODE_POS 0 |
| #define MAC_CFG_DESC_TX_1_PKT_MODE_LEN 4 |
| #define MAC_CFG_DESC_TX_1_PKT_MODE_MSK 0xF |
| |
| #define MAC_CFG_DESC_TX_1_PKT_MODE_EN_POS 4 |
| #define MAC_CFG_DESC_TX_1_PKT_MODE_EN_LEN 1 |
| #define MAC_CFG_DESC_TX_1_PKT_MODE_EN_MSK 0x10 |
| |
| #define MAC_CFG_DESC_TX_1_MAC_ID_EN_POS 5 |
| #define MAC_CFG_DESC_TX_1_MAC_ID_EN_LEN 1 |
| #define MAC_CFG_DESC_TX_1_MAC_ID_EN_MSK 0x20 |
| |
| #define MAC_CFG_DESC_TX_1_MAC_ID_POS 6 |
| #define MAC_CFG_DESC_TX_1_MAC_ID_LEN 2 |
| #define MAC_CFG_DESC_TX_1_MAC_ID_MSK 0xc0 |
| |
| #define MAC_CFG_DESC_TX_1_ACK_POLICY_EN_POS 15 |
| #define MAC_CFG_DESC_TX_1_ACK_POLICY_EN_LEN 1 |
| #define MAC_CFG_DESC_TX_1_ACK_POLICY_EN_MSK 0x8000 |
| |
| #define MAC_CFG_DESC_TX_1_DST_INDEX_POS 16 |
| #define MAC_CFG_DESC_TX_1_DST_INDEX_LEN 4 |
| #define MAC_CFG_DESC_TX_1_DST_INDEX_MSK 0xF0000 |
| |
| #define MAC_CFG_DESC_TX_1_DST_INDEX_EN_POS 20 |
| #define MAC_CFG_DESC_TX_1_DST_INDEX_EN_LEN 1 |
| #define MAC_CFG_DESC_TX_1_DST_INDEX_EN_MSK 0x100000 |
| |
| #define MAC_CFG_DESC_TX_1_ACK_POLICY_POS 21 |
| #define MAC_CFG_DESC_TX_1_ACK_POLICY_LEN 2 |
| #define MAC_CFG_DESC_TX_1_ACK_POLICY_MSK 0x600000 |
| |
| #define MAC_CFG_DESC_TX_1_LIFETIME_EN_POS 23 |
| #define MAC_CFG_DESC_TX_1_LIFETIME_EN_LEN 1 |
| #define MAC_CFG_DESC_TX_1_LIFETIME_EN_MSK 0x800000 |
| |
| #define MAC_CFG_DESC_TX_1_MAX_RETRY_POS 24 |
| #define MAC_CFG_DESC_TX_1_MAX_RETRY_LEN 7 |
| #define MAC_CFG_DESC_TX_1_MAX_RETRY_MSK 0x7F000000 |
| |
| #define MAC_CFG_DESC_TX_1_MAX_RETRY_EN_POS 31 |
| #define MAC_CFG_DESC_TX_1_MAX_RETRY_EN_LEN 1 |
| #define MAC_CFG_DESC_TX_1_MAX_RETRY_EN_MSK 0x80000000 |
| |
| /* TX MAC Dword 2 */ |
| #define MAC_CFG_DESC_TX_2_NUM_OF_DESCRIPTORS_POS 0 |
| #define MAC_CFG_DESC_TX_2_NUM_OF_DESCRIPTORS_LEN 8 |
| #define MAC_CFG_DESC_TX_2_NUM_OF_DESCRIPTORS_MSK 0xFF |
| |
| #define MAC_CFG_DESC_TX_2_RESERVED_POS 8 |
| #define MAC_CFG_DESC_TX_2_RESERVED_LEN 10 |
| #define MAC_CFG_DESC_TX_2_RESERVED_MSK 0x3FF00 |
| |
| #define MAC_CFG_DESC_TX_2_L2_TRANSLATION_TYPE_POS 18 |
| #define MAC_CFG_DESC_TX_2_L2_TRANSLATION_TYPE_LEN 2 |
| #define MAC_CFG_DESC_TX_2_L2_TRANSLATION_TYPE_MSK 0xC0000 |
| |
| #define MAC_CFG_DESC_TX_2_SNAP_HDR_INSERTION_EN_POS 20 |
| #define MAC_CFG_DESC_TX_2_SNAP_HDR_INSERTION_EN_LEN 1 |
| #define MAC_CFG_DESC_TX_2_SNAP_HDR_INSERTION_EN_MSK 0x100000 |
| |
| #define MAC_CFG_DESC_TX_2_VLAN_REMOVAL_EN_POS 21 |
| #define MAC_CFG_DESC_TX_2_VLAN_REMOVAL_EN_LEN 1 |
| #define MAC_CFG_DESC_TX_2_VLAN_REMOVAL_EN_MSK 0x200000 |
| |
| /* TX MAC Dword 3 */ |
| #define MAC_CFG_DESC_TX_3_UCODE_CMD_POS 0 |
| #define MAC_CFG_DESC_TX_3_UCODE_CMD_LEN 32 |
| #define MAC_CFG_DESC_TX_3_UCODE_CMD_MSK 0xFFFFFFFF |
| |
| /* TX DMA Dword 0 */ |
| #define DMA_CFG_DESC_TX_0_L4_LENGTH_POS 0 |
| #define DMA_CFG_DESC_TX_0_L4_LENGTH_LEN 8 |
| #define DMA_CFG_DESC_TX_0_L4_LENGTH_MSK 0xFF |
| |
| #define DMA_CFG_DESC_TX_0_CMD_EOP_POS 8 |
| #define DMA_CFG_DESC_TX_0_CMD_EOP_LEN 1 |
| #define DMA_CFG_DESC_TX_0_CMD_EOP_MSK 0x100 |
| |
| #define DMA_CFG_DESC_TX_0_CMD_MARK_WB_POS 9 |
| #define DMA_CFG_DESC_TX_0_CMD_MARK_WB_LEN 1 |
| #define DMA_CFG_DESC_TX_0_CMD_MARK_WB_MSK 0x200 |
| |
| #define DMA_CFG_DESC_TX_0_CMD_DMA_IT_POS 10 |
| #define DMA_CFG_DESC_TX_0_CMD_DMA_IT_LEN 1 |
| #define DMA_CFG_DESC_TX_0_CMD_DMA_IT_MSK 0x400 |
| |
| #define DMA_CFG_DESC_TX_0_SEGMENT_BUF_DETAILS_POS 11 |
| #define DMA_CFG_DESC_TX_0_SEGMENT_BUF_DETAILS_LEN 2 |
| #define DMA_CFG_DESC_TX_0_SEGMENT_BUF_DETAILS_MSK 0x1800 |
| |
| #define DMA_CFG_DESC_TX_0_TCP_SEG_EN_POS 13 |
| #define DMA_CFG_DESC_TX_0_TCP_SEG_EN_LEN 1 |
| #define DMA_CFG_DESC_TX_0_TCP_SEG_EN_MSK 0x2000 |
| |
| #define DMA_CFG_DESC_TX_0_IPV4_CHECKSUM_EN_POS 14 |
| #define DMA_CFG_DESC_TX_0_IPV4_CHECKSUM_EN_LEN 1 |
| #define DMA_CFG_DESC_TX_0_IPV4_CHECKSUM_EN_MSK 0x4000 |
| |
| #define DMA_CFG_DESC_TX_0_TCP_UDP_CHECKSUM_EN_POS 15 |
| #define DMA_CFG_DESC_TX_0_TCP_UDP_CHECKSUM_EN_LEN 1 |
| #define DMA_CFG_DESC_TX_0_TCP_UDP_CHECKSUM_EN_MSK 0x8000 |
| |
| #define DMA_CFG_DESC_TX_0_QID_POS 16 |
| #define DMA_CFG_DESC_TX_0_QID_LEN 5 |
| #define DMA_CFG_DESC_TX_0_QID_MSK 0x1F0000 |
| |
| #define DMA_CFG_DESC_TX_0_PSEUDO_HEADER_CALC_EN_POS 21 |
| #define DMA_CFG_DESC_TX_0_PSEUDO_HEADER_CALC_EN_LEN 1 |
| #define DMA_CFG_DESC_TX_0_PSEUDO_HEADER_CALC_EN_MSK 0x200000 |
| |
| #define DMA_CFG_DESC_TX_0_L4_TYPE_POS 30 |
| #define DMA_CFG_DESC_TX_0_L4_TYPE_LEN 2 |
| #define DMA_CFG_DESC_TX_0_L4_TYPE_MSK 0xC0000000 /* L4 type: 0-UDP, 2-TCP */ |
| |
| #define DMA_CFG_DESC_TX_OFFLOAD_CFG_MAC_LEN_POS 0 |
| #define DMA_CFG_DESC_TX_OFFLOAD_CFG_MAC_LEN_LEN 7 |
| #define DMA_CFG_DESC_TX_OFFLOAD_CFG_MAC_LEN_MSK 0x7F /* MAC hdr len */ |
| |
| #define DMA_CFG_DESC_TX_OFFLOAD_CFG_L3T_IPV4_POS 7 |
| #define DMA_CFG_DESC_TX_OFFLOAD_CFG_L3T_IPV4_LEN 1 |
| #define DMA_CFG_DESC_TX_OFFLOAD_CFG_L3T_IPV4_MSK 0x80 /* 1-IPv4, 0-IPv6 */ |
| |
| #define TX_DMA_STATUS_DU BIT(0) |
| |
| /* Tx descriptor - DMA part |
| * [dword 0] |
| * bit 0.. 7 : l4_length:8 layer 4 length |
| * bit 8 : cmd_eop:1 This descriptor is the last one in the packet |
| * bit 9 : reserved |
| * bit 10 : cmd_dma_it:1 immediate interrupt |
| * bit 11..12 : SBD - Segment Buffer Details |
| * 00 - Header Segment |
| * 01 - First Data Segment |
| * 10 - Medium Data Segment |
| * 11 - Last Data Segment |
| * bit 13 : TSE - TCP Segmentation Enable |
| * bit 14 : IIC - Directs the HW to Insert IPv4 Checksum |
| * bit 15 : ITC - Directs the HW to Insert TCP/UDP Checksum |
| * bit 16..20 : QID - The target QID that the packet should be stored |
| * in the MAC. |
| * bit 21 : PO - Pseudo header Offload: |
| * 0 - Use the pseudo header value from the TCP checksum field |
| * 1- Calculate Pseudo header Checksum |
| * bit 22 : NC - No UDP Checksum |
| * bit 23..29 : reserved |
| * bit 30..31 : L4T - Layer 4 Type: 00 - UDP , 10 - TCP , 10, 11 - Reserved |
| * If L4Len equal 0, no L4 at all |
| * [dword 1] |
| * bit 0..31 : addr_low:32 The payload buffer low address |
| * [dword 2] |
| * bit 0..15 : addr_high:16 The payload buffer high address |
| * bit 16..23 : ip_length:8 The IP header length for the TX IP checksum |
| * offload feature |
| * bit 24..30 : mac_length:7 |
| * bit 31 : ip_version:1 1 - IPv4, 0 - IPv6 |
| * [dword 3] |
| * [byte 12] error |
| * bit 0 2 : mac_status:3 |
| * bit 3 7 : reserved:5 |
| * [byte 13] status |
| * bit 0 : DU:1 Descriptor Used |
| * bit 1 7 : reserved:7 |
| * [word 7] length |
| */ |
| struct vring_tx_dma { |
| u32 d0; |
| struct wil_ring_dma_addr addr; |
| u8 ip_length; |
| u8 b11; /* 0..6: mac_length; 7:ip_version */ |
| u8 error; /* 0..2: err; 3..7: reserved; */ |
| u8 status; /* 0: used; 1..7; reserved */ |
| __le16 length; |
| } __packed; |
| |
| /* TSO type used in dma descriptor d0 bits 11-12 */ |
| enum { |
| wil_tso_type_hdr = 0, |
| wil_tso_type_first = 1, |
| wil_tso_type_mid = 2, |
| wil_tso_type_lst = 3, |
| }; |
| |
| /* Rx descriptor - MAC part |
| * [dword 0] |
| * bit 0.. 3 : tid:4 The QoS (b3-0) TID Field |
| * bit 4.. 6 : cid:3 The Source index that was found during parsing the TA. |
| * This field is used to define the source of the packet |
| * bit 7 : MAC_id_valid:1, 1 if MAC virtual number is valid. |
| * bit 8.. 9 : mid:2 The MAC virtual number |
| * bit 10..11 : frame_type:2 : The FC (b3-2) - MPDU Type |
| * (management, data, control and extension) |
| * bit 12..15 : frame_subtype:4 : The FC (b7-4) - Frame Subtype |
| * bit 16..27 : seq_number:12 The received Sequence number field |
| * bit 28..31 : extended:4 extended subtype |
| * [dword 1] |
| * bit 0.. 3 : reserved |
| * bit 4.. 5 : key_id:2 |
| * bit 6 : decrypt_bypass:1 |
| * bit 7 : security:1 FC (b14) |
| * bit 8.. 9 : ds_bits:2 FC (b9-8) |
| * bit 10 : a_msdu_present:1 QoS (b7) |
| * bit 11 : a_msdu_type:1 QoS (b8) |
| * bit 12 : a_mpdu:1 part of AMPDU aggregation |
| * bit 13 : broadcast:1 |
| * bit 14 : mutlicast:1 |
| * bit 15 : reserved:1 |
| * bit 16..20 : rx_mac_qid:5 The Queue Identifier that the packet |
| * is received from |
| * bit 21..24 : mcs:4 |
| * bit 25..28 : mic_icr:4 this signal tells the DMA to assert an interrupt |
| * after it writes the packet |
| * bit 29..31 : reserved:3 |
| * [dword 2] |
| * bit 0.. 2 : time_slot:3 The timeslot that the MPDU is received |
| * bit 3.. 4 : fc_protocol_ver:1 The FC (b1-0) - Protocol Version |
| * bit 5 : fc_order:1 The FC Control (b15) -Order |
| * bit 6.. 7 : qos_ack_policy:2 The QoS (b6-5) ack policy Field |
| * bit 8 : esop:1 The QoS (b4) ESOP field |
| * bit 9 : qos_rdg_more_ppdu:1 The QoS (b9) RDG field |
| * bit 10..14 : qos_reserved:5 The QoS (b14-10) Reserved field |
| * bit 15 : qos_ac_constraint:1 QoS (b15) |
| * bit 16..31 : pn_15_0:16 low 2 bytes of PN |
| * [dword 3] |
| * bit 0..31 : pn_47_16:32 high 4 bytes of PN |
| */ |
| struct vring_rx_mac { |
| u32 d0; |
| u32 d1; |
| u16 w4; |
| u16 pn_15_0; |
| u32 pn_47_16; |
| } __packed; |
| |
| /* Rx descriptor - DMA part |
| * [dword 0] |
| * bit 0.. 7 : l4_length:8 layer 4 length. The field is only valid if |
| * L4I bit is set |
| * bit 8 : cmd_eop:1 set to 1 |
| * bit 9 : cmd_rt:1 set to 1 |
| * bit 10 : cmd_dma_it:1 immediate interrupt |
| * bit 11..15 : reserved:5 |
| * bit 16..29 : phy_info_length:14 It is valid when the PII is set. |
| * When the FFM bit is set bits 29-27 are used for for |
| * Flex Filter Match. Matching Index to one of the L2 |
| * EtherType Flex Filter |
| * bit 30..31 : l4_type:2 valid if the L4I bit is set in the status field |
| * 00 - UDP, 01 - TCP, 10, 11 - reserved |
| * [dword 1] |
| * bit 0..31 : addr_low:32 The payload buffer low address |
| * [dword 2] |
| * bit 0..15 : addr_high:16 The payload buffer high address |
| * bit 16..23 : ip_length:8 The filed is valid only if the L3I bit is set |
| * bit 24..30 : mac_length:7 |
| * bit 31 : ip_version:1 1 - IPv4, 0 - IPv6 |
| * [dword 3] |
| * [byte 12] error |
| * bit 0 : FCS:1 |
| * bit 1 : MIC:1 |
| * bit 2 : Key miss:1 |
| * bit 3 : Replay:1 |
| * bit 4 : L3:1 IPv4 checksum |
| * bit 5 : L4:1 TCP/UDP checksum |
| * bit 6 7 : reserved:2 |
| * [byte 13] status |
| * bit 0 : DU:1 Descriptor Used |
| * bit 1 : EOP:1 The descriptor indicates the End of Packet |
| * bit 2 : error:1 |
| * bit 3 : MI:1 MAC Interrupt is asserted (according to parser decision) |
| * bit 4 : L3I:1 L3 identified and checksum calculated |
| * bit 5 : L4I:1 L4 identified and checksum calculated |
| * bit 6 : PII:1 PHY Info Included in the packet |
| * bit 7 : FFM:1 EtherType Flex Filter Match |
| * [word 7] length |
| */ |
| |
| #define RX_DMA_D0_CMD_DMA_EOP BIT(8) |
| #define RX_DMA_D0_CMD_DMA_RT BIT(9) /* always 1 */ |
| #define RX_DMA_D0_CMD_DMA_IT BIT(10) /* interrupt */ |
| #define RX_MAC_D0_MAC_ID_VALID BIT(7) |
| |
| /* Error field */ |
| #define RX_DMA_ERROR_FCS BIT(0) |
| #define RX_DMA_ERROR_MIC BIT(1) |
| #define RX_DMA_ERROR_KEY BIT(2) /* Key missing */ |
| #define RX_DMA_ERROR_REPLAY BIT(3) |
| #define RX_DMA_ERROR_L3_ERR BIT(4) |
| #define RX_DMA_ERROR_L4_ERR BIT(5) |
| |
| /* Status field */ |
| #define RX_DMA_STATUS_DU BIT(0) |
| #define RX_DMA_STATUS_EOP BIT(1) |
| #define RX_DMA_STATUS_ERROR BIT(2) |
| #define RX_DMA_STATUS_MI BIT(3) /* MAC Interrupt is asserted */ |
| #define RX_DMA_STATUS_L3I BIT(4) |
| #define RX_DMA_STATUS_L4I BIT(5) |
| #define RX_DMA_STATUS_PHY_INFO BIT(6) |
| #define RX_DMA_STATUS_FFM BIT(7) /* EtherType Flex Filter Match */ |
| |
| struct vring_rx_dma { |
| u32 d0; |
| struct wil_ring_dma_addr addr; |
| u8 ip_length; |
| u8 b11; |
| u8 error; |
| u8 status; |
| __le16 length; |
| } __packed; |
| |
| struct vring_tx_desc { |
| struct vring_tx_mac mac; |
| struct vring_tx_dma dma; |
| } __packed; |
| |
| union wil_tx_desc { |
| struct vring_tx_desc legacy; |
| struct wil_tx_enhanced_desc enhanced; |
| } __packed; |
| |
| struct vring_rx_desc { |
| struct vring_rx_mac mac; |
| struct vring_rx_dma dma; |
| } __packed; |
| |
| union wil_rx_desc { |
| struct vring_rx_desc legacy; |
| struct wil_rx_enhanced_desc enhanced; |
| } __packed; |
| |
| union wil_ring_desc { |
| union wil_tx_desc tx; |
| union wil_rx_desc rx; |
| } __packed; |
| |
| struct packet_rx_info { |
| u8 cid; |
| }; |
| |
| /* this struct will be stored in the skb cb buffer |
| * max length of the struct is limited to 48 bytes |
| */ |
| struct skb_rx_info { |
| struct vring_rx_desc rx_desc; |
| struct packet_rx_info rx_info; |
| }; |
| |
| static inline int wil_rxdesc_tid(struct vring_rx_desc *d) |
| { |
| return WIL_GET_BITS(d->mac.d0, 0, 3); |
| } |
| |
| static inline int wil_rxdesc_cid(struct vring_rx_desc *d) |
| { |
| return WIL_GET_BITS(d->mac.d0, 4, 6); |
| } |
| |
| static inline int wil_rxdesc_mid(struct vring_rx_desc *d) |
| { |
| return (d->mac.d0 & RX_MAC_D0_MAC_ID_VALID) ? |
| WIL_GET_BITS(d->mac.d0, 8, 9) : 0; |
| } |
| |
| static inline int wil_rxdesc_ftype(struct vring_rx_desc *d) |
| { |
| return WIL_GET_BITS(d->mac.d0, 10, 11); |
| } |
| |
| static inline int wil_rxdesc_subtype(struct vring_rx_desc *d) |
| { |
| return WIL_GET_BITS(d->mac.d0, 12, 15); |
| } |
| |
| /* 1-st byte (with frame type/subtype) of FC field */ |
| static inline u8 wil_rxdesc_fc1(struct vring_rx_desc *d) |
| { |
| return (u8)(WIL_GET_BITS(d->mac.d0, 10, 15) << 2); |
| } |
| |
| static inline int wil_rxdesc_seq(struct vring_rx_desc *d) |
| { |
| return WIL_GET_BITS(d->mac.d0, 16, 27); |
| } |
| |
| static inline int wil_rxdesc_ext_subtype(struct vring_rx_desc *d) |
| { |
| return WIL_GET_BITS(d->mac.d0, 28, 31); |
| } |
| |
| static inline int wil_rxdesc_retry(struct vring_rx_desc *d) |
| { |
| return WIL_GET_BITS(d->mac.d0, 31, 31); |
| } |
| |
| static inline int wil_rxdesc_key_id(struct vring_rx_desc *d) |
| { |
| return WIL_GET_BITS(d->mac.d1, 4, 5); |
| } |
| |
| static inline int wil_rxdesc_security(struct vring_rx_desc *d) |
| { |
| return WIL_GET_BITS(d->mac.d1, 7, 7); |
| } |
| |
| static inline int wil_rxdesc_ds_bits(struct vring_rx_desc *d) |
| { |
| return WIL_GET_BITS(d->mac.d1, 8, 9); |
| } |
| |
| static inline int wil_rxdesc_mcs(struct vring_rx_desc *d) |
| { |
| return WIL_GET_BITS(d->mac.d1, 21, 24); |
| } |
| |
| static inline int wil_rxdesc_mcast(struct vring_rx_desc *d) |
| { |
| return WIL_GET_BITS(d->mac.d1, 13, 14); |
| } |
| |
| static inline struct vring_rx_desc *wil_skb_rxdesc(struct sk_buff *skb) |
| { |
| return (void *)skb->cb; |
| } |
| |
| static inline int wil_ring_is_empty(struct wil_ring *ring) |
| { |
| return ring->swhead == ring->swtail; |
| } |
| |
| static inline u32 wil_ring_next_tail(struct wil_ring *ring) |
| { |
| return (ring->swtail + 1) % ring->size; |
| } |
| |
| static inline void wil_ring_advance_head(struct wil_ring *ring, int n) |
| { |
| ring->swhead = (ring->swhead + n) % ring->size; |
| } |
| |
| static inline int wil_ring_is_full(struct wil_ring *ring) |
| { |
| return wil_ring_next_tail(ring) == ring->swhead; |
| } |
| |
| static inline u8 *wil_skb_get_da(struct sk_buff *skb) |
| { |
| struct ethhdr *eth = (void *)skb->data; |
| |
| return eth->h_dest; |
| } |
| |
| static inline u8 *wil_skb_get_sa(struct sk_buff *skb) |
| { |
| struct ethhdr *eth = (void *)skb->data; |
| |
| return eth->h_source; |
| } |
| |
| static inline bool wil_need_txstat(struct sk_buff *skb) |
| { |
| const u8 *da = wil_skb_get_da(skb); |
| |
| return is_unicast_ether_addr(da) && skb->sk && |
| (skb_shinfo(skb)->tx_flags & SKBTX_WIFI_STATUS); |
| } |
| |
| static inline void wil_consume_skb(struct sk_buff *skb, bool acked) |
| { |
| if (unlikely(wil_need_txstat(skb))) |
| skb_complete_wifi_ack(skb, acked); |
| else |
| acked ? dev_consume_skb_any(skb) : dev_kfree_skb_any(skb); |
| } |
| |
| /* Used space in Tx ring */ |
| static inline int wil_ring_used_tx(struct wil_ring *ring) |
| { |
| u32 swhead = ring->swhead; |
| u32 swtail = ring->swtail; |
| |
| return (ring->size + swhead - swtail) % ring->size; |
| } |
| |
| /* Available space in Tx ring */ |
| static inline int wil_ring_avail_tx(struct wil_ring *ring) |
| { |
| return ring->size - wil_ring_used_tx(ring) - 1; |
| } |
| |
| static inline int wil_get_min_tx_ring_id(struct wil6210_priv *wil) |
| { |
| /* In Enhanced DMA ring 0 is reserved for RX */ |
| return wil->use_enhanced_dma_hw ? 1 : 0; |
| } |
| |
| /* similar to ieee80211_ version, but FC contain only 1-st byte */ |
| static inline int wil_is_back_req(u8 fc) |
| { |
| return (fc & (IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == |
| (IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK_REQ); |
| } |
| |
| /* wil_val_in_range - check if value in [min,max) */ |
| static inline bool wil_val_in_range(int val, int min, int max) |
| { |
| return val >= min && val < max; |
| } |
| |
| static inline u8 wil_skb_get_cid(struct sk_buff *skb) |
| { |
| struct skb_rx_info *skb_rx_info = (void *)skb->cb; |
| |
| return skb_rx_info->rx_info.cid; |
| } |
| |
| static inline void wil_skb_set_cid(struct sk_buff *skb, u8 cid) |
| { |
| struct skb_rx_info *skb_rx_info = (void *)skb->cb; |
| |
| skb_rx_info->rx_info.cid = cid; |
| } |
| |
| void wil_netif_rx_any(struct sk_buff *skb, struct net_device *ndev); |
| void wil_rx_reorder(struct wil6210_priv *wil, struct sk_buff *skb); |
| void wil_rx_bar(struct wil6210_priv *wil, struct wil6210_vif *vif, |
| u8 cid, u8 tid, u16 seq); |
| struct wil_tid_ampdu_rx *wil_tid_ampdu_rx_alloc(struct wil6210_priv *wil, |
| int size, u16 ssn); |
| void wil_tid_ampdu_rx_free(struct wil6210_priv *wil, |
| struct wil_tid_ampdu_rx *r); |
| void wil_tx_data_init(struct wil_ring_tx_data *txdata); |
| void wil_init_txrx_ops_legacy_dma(struct wil6210_priv *wil); |
| void wil_tx_latency_calc(struct wil6210_priv *wil, struct sk_buff *skb, |
| struct wil_sta_info *sta); |
| |
| #endif /* WIL6210_TXRX_H */ |
